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Head-to-head · Formal Verification Tools

PVS vs UPPAAL

  • Updated Nov 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score PVS #4 in Formal Verification Tools 9.2/10 Free plan Free plan✓ 2 of 2 features Visit PVS
UPPAAL #9 in Formal Verification Tools 8.6/10 Free plan · pricing on request Free plan✓ 1 of 2 features Visit UPPAAL

PVS leads on 0 checks, UPPAAL on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scorePVS · 9.2/10
  • Free planboth
  • Most featuresPVS · 2 of 2

PVS scores higher on our rubric for formal verification tools: 9.2 against 8.6 out of 10; our editors rank them #4 and #9.

On verification method, PVS gives you Hybrid where UPPAAL offers Model-checking. On supported formalisms, PVS gives you Theorem-proving where UPPAAL offers Invariants.

PVS is the better fit for hybrid specification and model checking. UPPAAL is the better fit for timed and real-time system verification.

  • PVS fits best

    Hybrid specification and model checking

  • UPPAAL fits best

    Timed and real-time system verification

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Side by side

Feature PVS 9.2/10 Visit ↗ UPPAAL 8.6/10 Visit ↗
At a glance
Editor score 9.2 8.6
Ranking #4 in Formal Verification Tools #9 in Formal Verification Tools
Best for Hybrid specification and model checking Timed and real-time system verification
Pricing model Free Free plan + paid
Starting price Free plan —
Free plan ✓ ✓
Free trial — —
Deployment Self-hosted Self-hosted, Desktop
Platforms Linux, macOS, Windows Windows, macOS, Linux
Support Email, Community, Docs Community, Docs
Built for Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features PVS 2/2 · UPPAAL 1/2
Counterexamples ✓ ✓
Proof artifacts ✓ (best) Not checked yet
Specs
Verification method Hybrid Model-checking
Supported formalisms Theorem-proving Invariants
Input languages PVS specification language (typed higher-order logic) UPPAAL timed-automata modeling language
Deployment Self-hosted Self-hosted
Our review
Pros
  • Combines higher-order theorem proving with BDD/CTL model checking
  • Supports SMT proving, random testing, and counterexample discovery
  • Runs on Linux, macOS, and Windows with useful integrations
  • Timed-automata modeling with clocks, channels, and shared variables
  • Symbolic, statistical, and safety and liveness model checking
  • Diagnostic traces, controller synthesis, and command-line verification
Cons
  • Its breadth requires expertise in formal methods and proof development
  • Self-hosted deployment places setup and maintenance on the user
  • Commercial use may require additional licensing through SRI
  • Commercial licensing requires contacting the licensing site
  • Self-hosted desktop deployment requires local installation
  • Focused on timed-automata models rather than broad formal methods
Our verdict

PVS is a self-hosted formal specification and verification environment for researchers and engineers working on formalizations, proofs, protocols, distributed systems, and safety-critical software or hardware specifications. Its typed…

Read the review →

UPPAAL is a desktop tool for modeling, simulating, and verifying real-time systems represented as networks of timed automata. It is designed for researchers, students, and engineering teams working on timing-critical systems. Its modeling…

Read the review →
  1. PVSFormal Verification Tools 9.2Free plan
  2. UPPAALFormal Verification Tools 8.6Free plan · pricing on request

Strengths and trade-offs

  • PVS — where it wins

    • Combines higher-order theorem proving with BDD/CTL model checking
    • Supports SMT proving, random testing, and counterexample discovery
    • Runs on Linux, macOS, and Windows with useful integrations

    Where it doesn't

    • Its breadth requires expertise in formal methods and proof development
    • Self-hosted deployment places setup and maintenance on the user
    • Commercial use may require additional licensing through SRI
  • UPPAAL — where it wins

    • Timed-automata modeling with clocks, channels, and shared variables
    • Symbolic, statistical, and safety and liveness model checking
    • Diagnostic traces, controller synthesis, and command-line verification

    Where it doesn't

    • Commercial licensing requires contacting the licensing site
    • Self-hosted desktop deployment requires local installation
    • Focused on timed-automata models rather than broad formal methods
  • PVS9.2/10 · Free plan

    A broad, self-hosted environment for hybrid formal verification workflows.

    Visit PVSFull verdict →
  • UPPAAL8.6/10 · Free plan · pricing on request

    A focused formal verification tool for timed and real-time system analysis.

    Visit UPPAALFull verdict →

PVS vs UPPAAL: questions

Which is better for formal verification tools, PVS or UPPAAL?

PVS scores higher on our rubric for formal verification tools: 9.2 against 8.6 out of 10; our editors rank them #4 and #9.

How do PVS and UPPAAL compare?

All 3 checks we put side by side come out level: neither leads on any.

Do PVS and UPPAAL have a free plan?

PVS: Yes. UPPAAL: Yes.

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026

Last updated · How we research and update